Measurement-stamping apparatus



Nov. 13 T923.

H. THUN MEASUREMENT STAMPING APPARATUS s sheets-snm l Filed Dec.

Nov. 13 ,1923. lflmfg A H. THUN MEASUREMENT STAMPING APPARATUS Filed Dec. e. 1921 3 sheets-sheet 2 v. l 923. No 3 s l H. THUN MEASUREMENT STAMPING APPARATUS Filed Dec, 8. 1921 3 Sheets-Sheet 3 teeth of the ratchet Wheel D7,

Vnot opposite the point of any tooth,A on the each from O to 9 and indicating tenths of a square metre. The entire periphery therefore corresponds to three square metres.

To the type wheel D is rigidly connected a. ratchet Wheel D?, which has thirty teeth, so that to one pitch unit of the ratchet DT correspond ten pitch units of the circularl rack (Z2. Opposite the teeth of the ratchet Wheel D7 lies a locking pin m2, which is carried on a double-armed lever H M1 rotatable on a. pin m3, the arrangement being such that., when the pin 62 engages het-Ween tivo teeth ot' the circular rack (Z2, the pin on? is not opposite the point of any tooth, but onv the contrary is displaced relatively to the tooth point next to it by an amount which, when the apparatus is in the zero position, is less than one tenth of the pitch unit but greater' than 0,-amounting preferably to one twentieth of the pitch unit While when the a ppi ratus is in other positions it is equal to this amount increased by Whole tenths of the pitch unit. When therefore the abore nientioned amount is exactly one twentieth ot the pitch unit, the pin m2 can only assume the ten positions numbered O to 9 in Fi l with respect to a gap between two of the teeth of the ratchet wheel D?.

The lever M M1 bears by the aid of a roller m4 under the action of a. weight m5 against another cam g provided on the hollow shaft G and which is somewhat wider than the cam g1. To the type wheel D5 and the. ratchet wheel DT is rigidly connected a pinion ZS which gears into a toothed wheel N. Between the toothed wheels N and ./S there is a ratio of transmission of 3 :10. If therefore the toothed Wheel DT and with it the type Wheel D5 rotates three times, nine tenths of a revolution of the toothed wheel N correspond to this rotation.

The wheel N is elastically coupled b v a U-shaped iat spring l? to a third type wheel N1 in a manner similar to that in which the disc D is coupled to the type wheel D The type Wheel N1 carries ten types numbered from O tot) for whole square metres. To the type wheel N1 is rigidly connected a ratchet Wheel N2, to `which a roller 'll is at tached. A weight T1, which is attached means of a band 255 passing over a guide roller T2 to the roller T, tends to permanently rotate this latter in a direction opposite to that indicated by the arrow g/ (sce F ig. 3). The teeth of this ratchet Wheel N2 have a locking pin Q2 opposite to them, which is carried on a double-armed lever Q Q1 rotatable around the` pin m3.

In the zero positionV of the apparatus shown the zero of the disc Nl is distant by a certain amount from the printing position. The arrangement is further such that when the pin 'm2 enters a gap between tivo of the the pin g2 is Fig. 3).

Lampes contrary is displaced relatively to the tooth point next to it by about one twentieth of the pitch unit of the ratchet wheel h2, increased1 in the given case, by Whole tenths of the pitch unit (see also Fig. The free arm of the lever Q Ql'bears by means of a roller g3 under the action of a weight (not visible in the drawing) against a cam g* provided on the hollow shaft G. This lat ter is made somewhat wider than the cam g.

When a piece of leather is being measured up, the chain wheel B, which rotates in agreement with the indicating disc ofthe adding mechanism, drives the sha-ft b1 and this latter rotates in the direction of the iirrovf (see Fig. 3). The rotation of the sha-'it- ZJ is taken part in, through the medium t the driver b2 and the nut which parts, when the shaft I)l rotates in the direction of the arrow af, act as a rigid coupling between the shaft b1 and the disc D, by the disc D and also, by means of the flat spring K, by the type Wheel D5 and consequently by the pinion (Z5. lts rotation is transmitted to the toothed vv ieel N and also by the aid of the flat spring l to the type Wheel X1 and this latter rotates against the action ofthe weight T1 in the direction indicated by the arrow y (see Fig. 3) the band 255 being thereby Wound up on to the roller T.

Then the measuring opera-tion is over the type Wheels D5 and N1 have thus been set to correspond to the area measured. During this time the type Wheel D5 has made more than one complete revolution, if the area measured exceeds three square metres. The shaft G5 will noWhe rotated in the direction indicated by the a row e (see Fig. )Viren this takes place the cam gt releases the le ver E El and the cam g2 the lever H H1 in close succession. In consequence thereof, the lever E El rotates under the action of the Weight in a countercloclnvise direction, and the lever-.lil H1 rotates under the action of the Weight it* in a clockwise.direction (see Un the rotation of the lever E E1 which takes place first, the locking pin c2 drops into a gap between tivo of the teeth of the circular rack Z2 and rotates the disc D, until it strikes against the bottom of the gap between the teeth. The circular rack Z2 can therefore be rotatedbacliwards orfor- Wards with the disc D up to half a pitch unit or half one hundredth lof aV square metre (rounding off of the result of the measurement to hundredths Vof a square metre). f

. During the aforesaid rotation ofthe disc D the nut C is in one case lifted offthe stop 52, While in the other case the shaft b1 is rotated with it aga-inst the action of the sprine R. Only now the exact setting of the type Wheels does take place. The setting ofV the type `wheel 'J5 provided for the hun-V dreths of a square metre dependsupon the ilo lli)

lll

position of the stepped plate d which is now locked. As soon as the cam g2 has released the lever H Hl, this latter swings under the action of the weight /t4 in al clockwise direc tion, until the stop pin la? strikes against that step, ot the stepped plate di which is opposite to it, and is adjusted by the dropping of the locking pin e2 into the gap.

lVhen the lever H H1 is rocked the toothed sector h rotates the toothed pinion J and the type wheel J1 connected to it. The extent of the rotation depends on the adjustment ot' 1 j usted) releases the lever M M1, so that this latter rocks in a clockwise direction under the action of the weight m5.

The ratchet wheel DT has also been adj usted with the disc D. As already stated, the parts are so arranged that the point of a tooth can never be located opposite the locking pin. m2 after the disc D has been locked. Y lf now therefore the locking pin m? strikes against the ratchet wheel DT, it always drops into a gap between two of the teeth, and into that one which corresponds to the rounded oit' result of measureinent. The locking disc DT is rotated by the lockingpin fm? under the action of the weight m5 against the action of the flat spring l until the locking pin m2 has brought its point to the bottom of the `respective gap. The type wheel D5 has also been locked with the ratchet wheel D7 and this in such a way that the correct type is located at the point where the impression is to be produced.

Finally after the further rotation of the shaft G3 the lever Q Q1 is also released, so 'that this latter rocks in a clockwise direction under the action of the respective weight.

il hen this takes place the locking pin g2, as

yfollows from what has already been said above, always drops into a A.gap between two teeth of the ratchet wheel N2 and this into that particular one which corresponds to the rounded vott1 result of measurement. It does so because by the dropping' in of the locking pins c2 and m2 the parts N, N1 and N2 have been correctly adjusted for the dropping in of the locking pin g2. The ratchet wheel N2 and, with it the type wheel N1, are rotated by the locking pin Q2 under the action of the aforesaid weight against the action of the flat spring P, until the locking pin q2 has brought its point to the bottom of the respective gap. Now the type wheel N1 is also locked in the correct position, so that when printing now takes place in the usual way a value is printed on the leather which can at the most diilier by plus or minus half a hundredth of a square metre from the exact value.

After the type wheels have been locked, the machine is reversed, in order to bring back the indicating, disc to the zero position, so that the shaft b1 rotates in a counterclockwise direction. lVhen this takes place, the stop 3 is lifted ofi' the nut C which is moved along the fixed bolt (Z, in the direction indicated by the arrow n (seo Fig. 2), owing to the rotation ofthe screw-threaded sleeve b4. Prior to the completion oi' one revolution ofthe shaft b1 the nut C has moved out of the path of the stop 713, as it projected into this path less than one turn ot' the thread of the screw-threaded sleeve o". In consequence hereof the shaft l can continue to rotate without hindrance, until the indicating disc has been brought back to the Zero position. In the meantime the stamping has taken place. After this the shaft G continues to be rotated in the direction indicated by the arrow e', so that the cams mounted on the hollow shaft G rock the levers Q Q1, M M1, H Hl and E El back into their original positions again. lVhen this takes place the various locking,l pins are disconnected from the corresponding toothed or ratchet wheels and these latter return together with the type wheels to their zero posit-ions under the action of the weight T1.

Then the type wheel D5 is rotated backwards the nut C carried by the disc D is shifted in a direction opposite to that iudicated by thel arrow 'u on Vthe scrcwthreaded sleeve o* which is now locked, until the nut C, finally, and at the instant in which the apparatus has returned to its zero position, comes into contact with the driver b2, which prevents any further rotation of the shaft D. The return of the type wheel Jl to its zero position takes place innncdiately when the lever H H1 is rotated b v means of the toothed sector h5.

` Claims:

l. In a stamping apparatus of t-he character described, a plurality of type discs, lockingl means'vfor each Iof said type discs, and controlling means for said locking means, said controlling means so coacting` with said locking means that the locking means for the type disc for the lowest unit is rst, and after it that for the type disc for the next higher unit, is operated.

2. In a stamping apparatus of the character described, a plurality of type discs, locking means for each of said type discs, said locking means comprising a ratchet wheel and a locking member cooperating therewith, controlling means for said locking means, said controlling means so coacting with said locking means that the locking means for the type disc for the lowest unit is iirst, and after it that for the type disc for theneXt higher unit, is operated, and elastic coupling ymeans connecting the ratchet wheel of the type disc for the lower .unit with the ratchet whel ofthe type ydisc of the next higher Limit.

3. In a stamping apparatus of the charaetel" described, a plurality of type discs, locking mea-ns `for each of ysaid type discs, Said dlocking means comprising a ratchet Wheel and a locking member cooperating therewith, the ratchet wheels and locking members of 4the type discs for two succes sive units being so arranged relatively to each other that when the corresponding locking member engages with the ratchet wheel of the type disc for the lower unit, the locking member ot the ratchet wheel ot' the type disc for the next higher unit is always opposite that gap between two of the teeth of this ratchet. wheel Awhich eo1 respends to the figure to be printed, controlling means for said locking means, said controlling means so coacting with said locking means that the locking means for the type disc ,for the lowest n nit is first, and after it that for the type disc tor ,the next higher unit, is operated, and elastic coupling ,means connecting the ratchet whe-el ot' the type disc for the lower unit with the ratchet wheel .Qt' the type discofthe next higher unit.

4. In a stamping apparatus oi? the Character described, a. plurality of type dises, locking means ttor each of said type discs, said locking means comprising a ratchet wheel and a locking member cooperating' therewith, said locking means being 4so arranged that when the ratchet wheel ot' the typedisc for the lower unit is in the zero position, the locking member ojt` the ratchet wheel ot' the type disc for the next higher unit is displaced relatively tothe next tooth of this ratchet wheel by an amount which is equal to the pitch nnitof the .same divided by the double ot' the number of positions this locking member can assume with respect to any single gap between the teeth, controlling means for said locking means, said c ontrolling .means so coae'ting with locking 'means that the lockingnieans for -the type'disc for 4the 'lowest unit is first, and after it that tor the type disc for the next higher unit, is operated, and elastic coupling means connecting the ratchet wheelot the type Vdisc for the lower unit with the ratchet wheeljof the Vtype disc of the next higher unit.

5. In a stamping apparatus ofthe character described, a plurality of type discs,l o' ck ing means for each oi" said type discs, said locking means comp-rising a ratchet wlieel and a locking member cooperating tlierewith, stepped stops carried by the ratchet wheel ofthe type disc Vfor the lowest'unit, Va rocking ,toothed sector positively connected to the type disc for the lowest unit, a `stop pin `mounted on said sector and adaptedto coact with said stepped stops so that according to the positionot said stepped stops, the stop pin together with the toothed sector and t-he type disc for the lowest unit can travel over a greater or lesser distance, and controlling means for said locking mea-ns, said controlling means so coacting withV said locking' means that the locking means or the type disc for the lowest unitv is first, and after it that for the .type disc ttor the next higher unit, is operated.

G. In a stamping apparatus lot the character described, a' plurality ot type discs, locking means for each of said type discs, said locking means comprising a ratchet wheel anda locking member cooperating therewith, a driving'sha-t't for said stamping apparatus, thenatchet wheel ot' the typedisc for the lowest unit beingfloosely mounted on said driving shaft, a' stop vmounted on said driving sha-tt, a screw `tin-eaded portion on said driving shaft, a bolt mounted on the ratchet wheel of the type disc for the lowest unit, a nut mounted on the Screw threaded portion of the driving shaft, and adapted to be axially movable on said bolt, the stop on saiddriving shattengaging said nut kin. driving relation, said nut projecting less than oneturnof its thread in an axial direction into the path of said stop and controlling means for said locking means, said controlling means so coacting with' said locking means that the loc-king means 'for the type disc for the lowest unit is first, and after it thatfor th-e typed-isc tor the next higher unit, is operated. 'Y

The foregoing specication signed at Essen, Germany, this 8th day of November,

HERMANN 

